Question

Simply and express in scientific notation
(7.87×10−1)−6

Answer 1

the answer should be 71.7

thank you for tolerating my probable wrongness.

Answer 2

(7.87*10^-1)^-6 = 7.87^-6 x (10^-1)^-6

or:

4.209x10^-6 x 10^-7

= 4.209 x 10^-13

Explanation: